<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <!-- 警告 -->
      <el-alert
        title="添加商品信息！"
        type="info"
        center
        show-icon
        :closable="false"
      >
      </el-alert>

      <!-- 步骤条 -->
      <el-steps
        :space="200"
        :active="activeIndex - 0"
        finish-status="success"
        align-center
      >
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>

      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addRuleForm"
        label-width="100px"
        label-position="top"
      >
        <!-- 标题栏 -->
        <el-tabs
          v-model="activeIndex"
          :tab-position="'left'"
          :before-leave="beforeLeave"
          @tab-click="tabClick"
        >
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input  v-model="addForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input type="number" v-model="addForm.goods_price"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input type="number" v-model="addForm.goods_number"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input type="number" v-model="addForm.goods_weight"></el-input>
            </el-form-item>

            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader
                expandTrigger="hover"
                clearable
                v-model="addForm.goods_cat"
                :options="cateList"
                :props="cateProps"
                @change="handleChange"
              ></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">
            <el-form-item
              :label="item.attr_name"
              v-for="item in manyTabsData"
              :key="item.attr_id"
            >
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox
                  border
                  :label="cb"
                  v-for="(cb, i) in item.attr_vals"
                  :key="i"
                ></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name="2">
            <el-form-item
              :label="item.attr_name"
              v-for="item in onlyTabsData"
              :key="item.attr_id"
            >
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品图片" name="3">
            <!-- action表示图片要上传的地址 -->
            <el-upload
              action="http://127.0.0.1:8888/api/private/v1/upload"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              :headers="headerObj"
              :on-success="handleSuccess"
              list-type="picture"
            >
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
          </el-tab-pane>
          <el-tab-pane label="商品内容" name="4">

            <!-- 副文本编辑器 -->
            
             <quill-editor
                v-model="addForm.goods_introduce"
             ></quill-editor>
                <el-button type="primary" class="btnadd" @click="add">添加分类</el-button>
          </el-tab-pane>
        </el-tabs>
      </el-form>
 
      <el-dialog
        title="图片预览"
        :visible.sync="proViewVisible"
        width="30%"
    
      >
       <img :src="proviewPath" alt="" class="proview">
       
      </el-dialog>
    </el-card>
  </div>
</template>
<script>
 import _ from 'lodash'

export default {
  data() {
    return {
      activeIndex: '0',
      addForm: {
        goods_name: '',
        goods_price: 0,
        goods_number: 0,
        goods_weight: 0,
        //商品所属的分类数组
        goods_cat: [],
        pics: [],
        // 商品详情描述
        goods_introduce:'',
        attrs:[]
      },
      //级联选择器规则
      addFormRules: {
        goods_name: [
          { required: true, message: '请输入商品名称', trigger: 'blur' },
        ],
        goods_price: [
          { required: true, message: '请输入商品价格', trigger: 'blur' },
        ],
        goods_number: [
          { required: true, message: '请输入商品数量', trigger: 'blur' },
        ],
        goods_weight: [
          { required: true, message: '请输入商品重量', trigger: 'blur' },
        ],
        goods_cat: [
          { required: true, message: '请选择商品分类', trigger: 'blur' },
        ],
      },
      //   props指定值
      cateProps: {
        label: 'cat_name',
        value: 'cat_id',
        children: 'children',
      },
      //商品分类列表
      cateList: [],
      //动态数据列表
      manyTabsData: [],
      //静态数据列表
      onlyTabsData: [],
      //图片上传组件的请求头对象
      headerObj: {
        Authorization: window.sessionStorage.getItem('token'),
      },
        // 图片临时路径
      proviewPath: '',
      proViewVisible:false
    }
  },
  created() {
    this.getCateList()
  },
  methods: {
    //   获取数据
    async getCateList() {
      const { data: res } = await this.$http.get('categories')
      if (res.meta.status !== 200) {
        return this.$message.error('获取失败')
      }
      this.cateList = res.data
    },
    // 级联选择器数值发生变化
    handleChange() {
      console.log(this.addForm.goods_cat)
      if (this.addForm.goods_cat.length !== 3) {
        this.addForm.goods_cat = []
      }
    },
    //不选择最下边的分类不让进第二页
    beforeLeave(activeName, OldactiveName) {
      if (OldactiveName == '0' && this.addForm.goods_cat.length !== 3) {
        this.$message.error('请选择商品分类')
        return false
      }
    },
    //tabs小标签的获取
    async tabClick() {
      console.log(this.activeIndex)
      if (this.activeIndex == '1') {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: 'many' },
          }
        )
        if (res.meta.status !== 200) {
          this.$message.error('获取动态数据列表失败')
        }
        console.log(res.data)
        res.data.forEach((item) => {
          item.attr_vals =
            item.attr_vals.length == 0 ? [] : item.attr_vals.split(' ')
        })
        this.manyTabsData = res.data
      }
      if (this.activeIndex == '2') {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: 'only' },
          }
        )
        if (res.meta.status !== 200) {
          this.$message.error('获取动态数据列表失败')
        }
        console.log(res.data)

        this.onlyTabsData = res.data
      }
    },
    //处理图片预览的方法
    handlePreview(file) {
      console.log(file)
      this.proviewPath = file.response.data.url
      this.proViewVisible=true
    },
    //移除图片方法
    handleRemove(file) {
      console.log(file)
      // 获取要删除的图片的临时路径
      const filePath = file.response.data.tem_path
      //从pics数组中找到这个图片的索引
      const i = this.addForm.pics.findIndex((x) => {
        x.pic == filePath
        //用splice截取走
      })
      this.addForm.pics.splice(i, 1)
      console.log(this.addForm.pics)
    },
    // 监听图片上传成功
    handleSuccess(response) {
      console.log(response)
      const picsInfo = { pic: response.data.tmp_path }
      this.addForm.pics.push(picsInfo)
      console.log(this.addForm.pics)
    },
    // 添加分类
    add(){
         this.$refs.addRuleForm.validate(async val=>{
             if(!val){
                 return this.$message.error('请填写必要的表单项')
             }
          const form = _.cloneDeep(this.addForm)

        form.goods_cat = form.goods_cat.join(',')
        //处理动态参数
        this.manyTabsData.forEach((item)=>{

            const newInfo={
                attr_id:item.attr_id,
                attr_value:item.attr_vals.join(' ')
            }
            // console.log(item);
           this.addForm.attrs.push(newInfo)
            
        })
        //处理静态属性
        this.onlyTabsData.forEach((item)=>{
                // console.log(item);
                    const newInfoo={
                 attr_id:item.attr_id,
                 attr_value:item.attr_vals
                }
                    this.addForm.attrs.push(newInfoo)
                    //  console.log(this.addForm);
            })
            console.log(this.addForm.attrs);
             form.attrs=this.addForm.attrs
              console.log(form);

          const {data:res}= await this.$http.post('goods',form)
              if(res.meta.status!==201){
                return this.$message.error('添加商品失败')
              }
              this.$message.success('添加商品成功')
              this.$router.push('/goods')
         })   

    } 
  },
  computed: {
    cateId() { 
      if (this.addForm.goods_cat.length == 3) {
        return this.addForm.goods_cat[2]
      }
      return null
    },
  },
}
</script>
<style>
.el-checkbox {
  margin: 0 10px 0 0 !important;
}
.proview{
    width: 100%;
}
.btnadd{
    margin-top: 15px !important;
    
}
</style>